Download 13th International Conference on Cochlear Implants and Other

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Transcript
P1-7-10
The effect of the cochlear implantation in teenagers with progressive hearing loss
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Kitaoka K. , Takahashi H. , Kanda Y. , Yoshida H. , Kihara C. , Hatachi K. , Hara M. , Watanabe T.
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Nagasaki University, Department of Otolaryngology-Head and Neck Surgery, Nagasaki City, Japan, 2Nagasaki Bell Hearing Center,
Nagasaki City, Japan
Background: Although the importance of the newborn hearing screening examination is well known,
management of children with progressive hearing loss remains a problem. We investigated the outcome of
cochlear implantation (CI) in teenagers with progressive hearing loss.
Methods: The teenager group consisted of 9 children who underwent CI because of progressive hearing loss
from February 1999 to July 2013. All of them had received auditory verbal education. The time of the CI is when
the effect of their hearing aids was lost. They were followed at least 6 months after surgery. All patients were
operated in Nagasaki University hospital. Four of the 9 children had large vestibular aqueduct syndrome, while
the cause of hearing loss was unknown in the other children.
Results: Pure-tone threshold level and speech discrimination score are compared. Almost all the children had
good performance; the average threshold level was 29dB, and the speech discrimination scores were more than
70 percent in all but one child, whose threshold level was 40dB and speech discrimination score was 5 percent.
The child had a long period of profound hearing loss. He once acquired language by auditory verbal education,
but it was interrupted by lip reading one year before CI because he received no benefit from his hearing aid.
Conclusion: Most of teenagers with progressive hearing loss were found to get good CI performance. One child
who showed insufficient result indicated the importance not only of the treatment and education but also the
timing of the CI.
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